Muhammad was a white man
While we were sitting with the Prophet in the mosque, a man came riding on a camel. He made his camel kneel down in the mosque, tied its foreleg and then said: "Who amongst you is Muhammad?" At that time the Prophet was sitting amongst us (his companions) leaning on his arm. We replied, "This white man reclining on his arm." The an then addressed him, "O Son of 'Abdul Muttalib." Volume 1, Book 3, Number 63.
Muhammad owned a black slave
I came and behold, Allah's Apostle was staying on a Mashroba (attic room) and a black slave of Allah's Apostle was at the top if its stairs. I said to him, "(Tell the Prophet) that here is 'Umar bin Al-Khattab (asking for permission to enter)." Then he admitted me. Volume 9, Book 91, Number 368.
Muhammad had people killed
Allah's Apostle entered Mecca in the year of its Conquest wearing an Arabian helmet on his head and when the Prophet took it off, a person came and said, "Ibn Khatal is holding the covering of the Ka'ba (taking refuge in the Ka'ba)." The Prophet said, "Kill him." Volume 3, Book 29, Number 72.
Muhammad said to die in battle for Allah grants you Paradise
The Prophet said, "The person who participates in (Holy battles) in Allah's cause and nothing compels him to do so except belief in Allah and His Apostles, will be recompensed by Allah either with a reward, or booty (if he survives) or will be admitted to Paradise (if he is killed in the battle as a martyr). Volume 1, Book 2, Number 35.
Did Muhammad teach Holy War upon those who reject Islam? Yes he did.
Following are various quotes from the Hadith dealing with killing people.
The second best deed is to participate in Jihad
Allah's Apostle was asked, "What is the best deed?" He replied, "To believe in Allah and His Apostle (Muhammad). The questioner then asked, "What is the next (in goodness)? He replied, "To participate in Jihad (religious fighting) in Allah's Cause." The questioner again asked, "What is the next (in goodness)?" He replied, "To perform Hajj (Pilgrim age to Mecca) 'Mubrur, (which is accepted by Allah and is performed with the intention of seeking Allah's pleasure only and not to show off and without committing a sin and in accordance with the traditions of the Prophet)." Volume 1, Book 2, Number 25,
Muhammad said if someone leaves Islam, to kill him
Ali burnt some people and this news reached Ibn 'Abbas, who said, "Had I been in his place I would not have burnt them, as the Prophet said, 'Don't punish (anybody) with Allah's Punishment.' No doubt, I would have killed them, for the Prophet said, 'If somebody (a Muslim) discards his religion, kill him.'" Volume 4, Book 52, Number 260, Also, see Volume 9, Book 84, Number 64,
Muhammad approves of killing someone who hurt him and having the killer lie
"Allah's Apostle said, "Who is willing to kill Ka'b bin Al-Ashraf who has hurt Allah and His Apostle?" Thereupon Muhammad bin Maslama got up saying, "O Allah's Apostle! Would you like that I kill him?" The Prophet said, "Yes," Muhammad bin Maslama said, "Then allow me to say a (false) thing (i.e. to deceive Kab). "The Prophet said, "You may say it." Then Muhammad bin Maslama went to Kab and said, "That man (i.e. Muhammad demands Sadaqa (i.e. Zakat) from us, and he has troubled us, and I have come to borrow something from you." On that, Kab said, "By Allah, you will get tired of him!" Muhammad bin Maslama said, "Now as we have followed him, we do not want to leave him unless and until we see how his end is going to be. .." Volume 5, Book 59, Number 369,
satan is the liar and murderer.